I'll keep the same compound lifts but mix everything else up. I love doing it this way too, keeps the workouts fresh and prevents me from just doing the same lifts that I like every time. I log all my workouts though and at the end of the month I'll look over how the weights are doing, and how I look/feel, and adjust on the rep scheme/frequency of workouts. Like a month ago I was doing Mon/Tues and Thurs/Fri...was working great but then I hit a plateau and switched to a Mon/Weds/Fri split for awhile and the extra rest really helped.